Paul immanuel schmaltz



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(No Model.) g P. I. SGHMALTZ. ENGINE VALVE GEAR.

No. 347,521. Patented Aug. 17, 18-86.

PATENT OFFICEO PAUL IMMANUEL SOHMALTZ, OF ALBANY, NEW YORK.

ENGINE VA LVE-G EAR.

ilI-ECIFICATION forming part of Letters Patent No. 347521, dated August17, 1886,

Application filed March 29, 1886.

To all whom it may concern.-

Be it known that I, PAUL IMMANUEL SOHMALTZ, a subject of the Emperor ofGermany, residing at 98 Grand street, Albany, county of Albany, andState of New York, have invented a new and useful Engine Valve- Gear;and I do hereby declare that the following is a full, clear, and exactdescriptionof the invention, which will enable others skilled in the artto which it appertains to make and use the same.

The object of my invention is to reduce the frictional wearand'resulting defects of cut-off and reversible engine valve-gears to aminimum, and to the same end to reduce the number of working parts andwearing surfaces as found in the existing cutoff and reversing gears,thus creating a reliable valve-gear which can be operated either by handor automatically. I attain this by making use of a counter-crank pivotedon the main crank-pin of the engine and operated by an extension of thispivot through the axis of the main erankpin.

Figures 1 and 2 show an application of this device, and Fig. 4 acorresponding valve-diagram for either cut-off or reversing gear. Fig. 3is an end view of a device shown in Figs. 1 and 2, showing the way Iattain my object in view in every case.

The description of Figs. 1, 2, 3 is as follows: Counter-crank a ispivoted on main crank-pin I), turned by the extension 0 of the pivot.Ihis extension has one or more grooves out its position.

at an angle to the axis of said pivot to fit a Serial No.19(i,908. (Nomodel.)

corresponding nut, d, which, bya motion relatively parallel to the axisof the pivot, creates an impulse to the counter-crank pin to change Thisparallel motion I attain by a sleeve, 6, connected to said nut, whichslides on a part of the crank f, or other part of the engine turned inline with the crank-shaft, the sleeve being provided with a ring-shapedslot, 9, to admit of a single or forked bar, h. This bar h has one ormore inclined surfaces, t, attached, moving in a correspondingstationary seat, It. By connecting this bar with a hand-lever orgovernor the cut-off or the reversing valve can be operated at will.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The'eombination, with a variable cut-off and reversing valve gear, ofa counter-crank, a, crank-pin b, and spirallygrooved extension 0 ofpivot, as shown and specified.

2. The combination, with a variable cut-off and reversing valve'gear, ofa counter-crank, a, crank-pin b, spirally -grooved extension 0 of pivot,nut d, and sleeve 6, with ring-shaped groove 9. p

3. The combination, with a variable cut-off and reversing valve gear,ofa counter-erank,a, crank pin 2), spirally-grooved extension 0 ofpivot, nut d, and sleeve 6, with ring-shaped groove 9, single or forkedbar 71, incline z, (5

and seat 70.

PAUL IMMANUEL SOHMALTZ.

Witnesses:

Gno. E. REID, Jos. It. GEOGHAN.

